Friday, August 28, 2009

28/08/2009 Progress

EV Batteries

  • Created the final main power wire (10AWG into 4, to connect to battery).
  • Created the small "mini-board" balancer with 1 ohm resistors. Plugged it in. It works (not too hot).
  • Worked out a solution to the "Accurate DMM" problem ... namely that Poppy already has an accurate DMM. Can just borrow that.
  • 1200 watt power supply turned up. Hooray !
  • Thoroughly measured and tested balancing board effects. Excellent !

Things I want to do today

  • Re-create the circuit board, with better traces (straighter, etc) ... and better positioning (narrower).
  • *** TEST *** my circuit idea for switches to be 12v potential only, not 42V (Note to self ... didn't thoroughly test or understand this last time around).
  • *** TEST *** that my theory on why the delay circuit works is sound.
  • *** TEST *** what happens when diode is not used.